IMR Press / CEOG / Volume 40 / Issue 4 / pii/1630389133224-1662106430

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 46 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on as a courtesy and upon agreement with S.O.G.

Open Access Case Report
Detection of unruptured ovarian pregnancy subsequently successfully treated by conservative laparoscopic surgery: a case report and review of the literature
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1 Department of Obstetrics and Gynecology, Hyogo College of Medicine, Hyogo (Japan)
Clin. Exp. Obstet. Gynecol. 2013, 40(4), 604–606;
Published: 10 December 2013

Early detection of ovarian pregnancy (OP) is essential for successful laparoscopic conservative surgery. However, early preoperative ultrasonography-based diagnosis is often difficult when fetal cardiac activity or the yolk sac is absent. The authors report a case of OP diagnosed at eight weeks gestational age in a natural pregnancy. The patient presented with amenorrhea and transient vaginal bleeding, and slight tenderness in the right ovary was noted during vaginal ultrasonography. Furthermore, ultrasonography showed a gestational sac (GS) without fetal cardiac activity or yolk sac, consistent with OP, and an adjacent compressible lutein cyst. The uterus, fallopian tubes, and left ovary were normal, and no cul-de-sac blood or ascites were found. Laparoscopy showed a two-cm mass partially covering the right ovary, which contained an unruptured GS. Subsequently, the mass was removed, and OP was histologically confirmed.
Laparoscopic surgery
Ovarian pregnancy
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